nonchalant

[ non-shuh-lahnt, non-shuh-lahnt, -luhnt ]
/ ˌnɒn ʃəˈlɑnt, ˈnɒn ʃəˌlɑnt, -lənt /

adjective

coolly unconcerned, indifferent, or unexcited; casual: His nonchalant manner infuriated me.

Origin of nonchalant

1725–35; < French nonchalant, present participle of obsolete nonchaloir to lack warmth (of heart), be indifferent, equivalent to non- non- + chaloir < Latin calēre to be warm. See -ant

OTHER WORDS FROM nonchalant

non·cha·lant·ly, adverb

Example sentences from the Web for nonchalant

British Dictionary definitions for nonchalant

nonchalant
/ (ˈnɒnʃələnt) /

adjective

casually unconcerned or indifferent; uninvolved

Derived forms of nonchalant

nonchalance, noun nonchalantly, adverb

Word Origin for nonchalant

C18: from French, from nonchaloir to lack warmth, from non- + chaloir, from Latin calēre to be warm